CN101562844B - Sending method, dispensing device and integrated circuit - Google Patents
Sending method, dispensing device and integrated circuit Download PDFInfo
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- CN101562844B CN101562844B CN200910143311.2A CN200910143311A CN101562844B CN 101562844 B CN101562844 B CN 101562844B CN 200910143311 A CN200910143311 A CN 200910143311A CN 101562844 B CN101562844 B CN 101562844B
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- 238000000034 method Methods 0.000 title claims abstract description 59
- 230000005540 biological transmission Effects 0.000 claims abstract description 89
- 230000004044 response Effects 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 7
- 238000004891 communication Methods 0.000 abstract description 137
- 238000010276 construction Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 238000001228 spectrum Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 7
- 238000000605 extraction Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 230000007423 decrease Effects 0.000 description 5
- 230000003362 replicative effect Effects 0.000 description 4
- 230000010354 integration Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0833—Random access procedures, e.g. with 4-step access
- H04W74/0841—Random access procedures, e.g. with 4-step access with collision treatment
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/002—Transmission of channel access control information
- H04W74/004—Transmission of channel access control information in the uplink, i.e. towards network
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/16—Performing reselection for specific purposes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/543—Allocation or scheduling criteria for wireless resources based on quality criteria based on requested quality, e.g. QoS
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0833—Random access procedures, e.g. with 4-step access
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Mobile Radio Communication Systems (AREA)
- Small-Scale Networks (AREA)
Abstract
The method of random access of a kind of dedicated channel can established in a shorter period between radio communication terminal device and base station apparatus is provided and performs the radio communication terminal device of this method of random access.In the apparatus, in step ST320, the RACH sub-channel assignment unit (211) the arbitrary time slot by RACH, to arbitrary subcarrier, it is randomly assigned the transmission packet inputted by copied cells (202).In step ST330, whether the allocation result of the allocation unit (211) of RACH subchannel is repeated to judge by allocation unit (210).When occurring during allocation unit (210) judges in this allocation result to repeat, allocation unit (210) makes either party of the RACH sub-channel assignment unit (211) of this repetition of generation re-start the distribution of step ST320.On the other hand, when judging that this allocation result does not occur to repeat, then step ST340 is performed.
Description
The application is filing date on February 28th, 2005, Application No. 200580006844.6, invention entitled " random
Access method and radio communication terminal device " the divisional application of application for a patent for invention.
Technical field
The present invention relates to comprising random with the wireless communication system of base station apparatus of multiple radio communication terminal device
Access method and radio communication terminal device thereof.
Background technology
In the past, use cellular fashion wireless communication system in, when radio communication terminal device proceed by communication or
When person is to restart to communicate, owing to the most not establishing the special letter between radio communication terminal device and base station apparatus
Road, so, radio communication terminal device is designed to, and utilizes RACH (hereinafter referred to as " RACH ": Random
Access Channel, RACH), attempt conducting interviews to base station apparatus.Such as, W-CDMA mode is being used
In wireless communication system, using the mode of CDMA slotted ALOHA (slotted ALOHA), multiple radio communication terminal devices exist respectively
When proceeding by communication or restart to communicate, by the arbitrary timing in starting timing candidate, (RACH is believed
Road), attempt base station is conducted interviews.If playing in the stipulated time from the timing carrying out this access, base station apparatus is not made
Response, that is judged as this access failure, it will again attempt to conduct interviews base station apparatus (for example, referring to non-patent literary composition
Offer 1).
It addition, in the wireless communication system using multicarrier load mode, when radio communication terminal device is in order to establish
Dedicated channel, and by RACH, transmission was grouped when base station apparatus is transmitted, then according to certain condition, select RACH's
Time slot (regularly) and subcarrier (frequency) and spread spectrum code, with the spread spectrum code that selects to sending after packet spreads, pass through
The technology that the timing selected and frequency are transmitted to base station apparatus is widely known by the people (for example, referring to patent documentation 1).Then, i.e.
Making to be in the technology that patent documentation 1 is described, radio communication terminal device is also attempted conducting interviews to base station apparatus, from carrying out
The timing of this access rises, if at the appointed time, base station apparatus does not respond, then, radio communication terminal device will
Again attempt to base station apparatus is conducted interviews.
[patent documentation 1] JP 2001-268051 publication
The supervision of [non-patent literature 1] Keiji Tachikawa, " W-CDMA mobile communication ", Wan Shan society, Heisei on June 25th, 13
Issue, p.45
Summary of the invention
Problem to be addressed by invention
But, at patent documentation 1 with the technology described in non-patent literature 1, multiple radio communication terminal devices pass through
RACH, attempts conducting interviews base station apparatus respectively, after judging that dedicated channel has been established, attempts filling base station
Put and again access, so, sometimes from the beginning of carrying out base station apparatus accessing for the first time, to establishing dedicated channel,
Needs take some time.And, along with the increase of quantity of the radio communication terminal device of belonging same community, logical
Cross the quantity sending packet that RACH is sent, also can increase therewith, therefore, the conflict between this transmission packet will be improved several
Rate, establishing the dedicated channel required time expended also is easy for extending.So, in conventional technology, strict subscribing
QoS (Quality of Service, service quality) postpone request service radio communication terminal device in, be easy for occur
Communication quality declines, or the problem such as can not communicate.
It is an object of the invention to provide one to establish between radio communication terminal device and base station apparatus in short period
The method of random access of dedicated channel and perform the radio communication terminal device of this method of random access.
For the method solving problem
The sending method that the present invention relates to, comprises the following steps: transmission packet is copied into multiple transmission and is grouped；And profit
With time slot and the subcarrier of the RACH randomly choosed from resource candidate, do not wait from base station apparatus for
The first response sending packet just sends the plurality of transmission packet being copied into.
The dispensing device that the present invention relates to, including: copied cells, transmission packet is copied into multiple transmission and is grouped；Distribution
Unit, sends the time slot of RACH distributing to randomly choose in resource candidate and secondary load by the plurality of
Ripple；And transmitting element, the described time slot selected by utilization and subcarrier, do not wait initial is sent out from base station apparatus
The response sending packet just sends the plurality of transmission packet being copied into.
The integrated circuit that the present invention relates to, including: replicating control unit, being grouped transmission packet being copied into multiple transmission
Process be controlled；Assignment control, to by the plurality of send distribute to resource candidate randomly chooses with
The time slot of machine access channel and the process of subcarrier are controlled；And transmission control unit, control the institute selected by utilizing
State time slot and subcarrier, do not wait from described in just the sending for the initial response sending packet and be copied into of base station apparatus
Multiple process sending packet.
The method of random access that the present invention relates to, including: to sending the copy step that packet replicates；By be replicated
Multiple above-mentioned transmissions are grouped, the allocation step being allocated to RACH respectively；And according in above-mentioned allocation step
Allocation result, multiple above-mentioned transmissions are grouped the forwarding step that is transmitted.
According to this method, owing to multiple transmission packets are assigned to RACH by radio communication terminal device, and fill to base station
Put and be transmitted, so, even if there being same community belonging to multiple radio communication terminal device, appointing in multiple transmissions packet
What one sends packet, is grouped all without the transmission sent with the radio communication terminal device from other and clashes, from
And the probability received by base station apparatus can be improved.Its result, according to this method, radio communication terminal device does not waits by base station
Response that device sends, that the most received by base station apparatus for the transmission packet confirmed to RACH transmission, and to RACH
Send the transmission packet being replicated, therefore, it is possible in a shorter period, establish the dedicated channel between base station apparatus.
The method of random access that the present invention relates to, including: in the present invention as stated above, will be after communication start, according to predetermined
The priority of service, determines the deciding step sending the duplication quantity being grouped in above-mentioned copy step.
According to this method, in addition to the effect that foregoing invention produces, because of according to after establishing dedicated channel in advance
Fixed type service, determines the quantity sending packet that radio communication terminal device is transmitted to RACH, therefore, belonging
In multiple radio communication terminal devices of same community, what urgency was the highest the most easily establishes dedicated channel.Its result, according to
This method, in multiple radio communication terminal devices of whole belonging same community, it is possible to become to be difficult to communicate
Quality Down or the problem such as can not communicate.
The method of random access that the present invention relates to, including: in the present invention as stated above, the repeating transmission time being grouped according to above-mentioned transmission
Number, determines the deciding step sending the duplication quantity being grouped in above-mentioned copy step.
According to this method, in addition to the effect that foregoing invention produces, because sending the duplication quantity of packet according to sending out
The sending times of packet is sent to increase, so in multiple radio communication terminal devices of belonging same community, urgency
The highest the most easily establishes dedicated channel.Its result, according to this method, in multiple nothings of whole belonging same community
In line communication terminal, it is possible to the problem such as become to be difficult to occur communication quality to decline or can not communicate.
The method of random access that the present invention relates to, including: in the present invention as stated above, according to using above-mentioned RACH
The quantity of the radio communication terminal device of belonging same community, determines the duplication number sending packet in above-mentioned copy step
The deciding step of amount.
According to this method, in addition to the effect that foregoing invention produces, because belonging to the radio communication of same community
If the increasing number of termination, each radio communication terminal device will reduce the duplication quantity sending packet respectively, because of
This can reduce the conflict probability sent between packet.Its result, according to this method, in whole belonging same community
In multiple radio communication terminal devices, it is possible to the problem such as become to be difficult to occur communication quality to decline or can not communicate.
The method of random access that the present invention relates to, as described below: in the present invention as stated above, will be replicated in above-mentioned allocation step
Multiple above-mentioned transmission packet, be separately dispensed into any one time slot of RACH.
The method of random access that the present invention relates to, as described below: in the present invention as stated above, will be replicated in above-mentioned allocation step
Multiple above-mentioned transmission packet, be separately dispensed into any one subcarrier of RACH.
According to these methods, in addition to the effect that foregoing invention produces, because radio communication terminal device is to RACH's
Either party of time slot or subcarrier, is randomly assigned and multiple sends packet, therefore, it is possible at radio communication terminal device
In, alleviate the load of necessary signal processing in the distribution sending packet.
The method of random access that the present invention relates to, as described below: in the present invention as stated above, will be replicated in above-mentioned allocation step
Multiple above-mentioned transmission packet, be separately dispensed into any one time slot and any one subcarrier of RACH.
According to this method, in addition to the effect that foregoing invention produces, because radio communication terminal device is to RACH's
Time slot and subcarrier, random assortment is multiple sends packet, therefore, even if there being multiple affiliated wireless communication in same community
Termination, it is also possible to reduce the conflict probability sent between packet.
The method of random access that the present invention relates to, as described below: in the present invention as stated above, will be replicated in above-mentioned allocation step
Multiple above-mentioned transmission packet, be separately dispensed into any one spread spectrum code of RACH.
According to this method, in addition to the effect that foregoing invention produces, because multiple radio communication terminal device is respectively
Utilize the spread spectrum code through randomly choosing, after transmission packet spread spectrum, be sent to base station apparatus, therefore, even if same little
Multiple affiliated wireless communication termination is had, it is also possible to reduce the conflict probability sent between packet in district.
The radio communication terminal device that the present invention relates to, the structure of employing includes: to sending the duplication that packet replicates
Unit；The multiple above-mentioned transmission being replicated is respectively allocated to the allocation unit of RACH；And according to by upper
State allocation result produced by allocation unit, multiple above-mentioned transmissions are grouped the transmitting element being transmitted.
According to this structure, multiple transmission packets that radio communication terminal device will replicate, RACH divides at random
Join, and be sent to base station apparatus.Therefore, even if having multiple affiliated wireless communication termination, Duo Gefa in same community
Send any transmission packet in packet, also will not produce punching with the transmission packet sent by other radio communication terminal device
Prominent, thus improve the probability received by base station apparatus.Its result, according to this structure, radio communication terminal device wait by
Response that base station apparatus sends, that the most received by base station apparatus for confirming transmission to be grouped, the transmission packet that will replicate
It is sent to RACH, thus it is possible in short-term, establish the dedicated channel between base station apparatus.
The effect of invention
According to the present invention, transmission packet is replicated by multiple radio communication terminal devices respectively, the plurality of transmission is divided
Group is randomly assigned to RACH, and is sent to base station apparatus, therefore, even there being multiple affiliated channel radio in same community
Letter termination, any one in multiple transmissions packet sends packet, is sent with by other radio communication terminal device
Transmission packet also will not produce conflict, thus, improve the probability received by base station apparatus.Its result, according to this invention,
Radio communication terminal device does not waits that sent by base station apparatus, for confirming what transmission packet had the most been received by base station apparatus
Response, by the transmission packet transmission that replicates to RACH, thus it is possible to special between establishment and base station apparatus in a shorter period
Use channel.
Accompanying drawing explanation
Fig. 1 is the structure chart representing the wireless communication system using method of random access that the present invention relates to；
Fig. 2 is the block diagram of the radio communication terminal device structure representing that embodiment of the present invention 1 relates to；
Fig. 3 is the flow chart that the method for random access relating to embodiment of the present invention 1 illustrates；
Fig. 4 A is the figure representing the situation sending packet in embodiment 1 to RACH distribution；
Fig. 4 B is the figure representing the situation sending packet in embodiment 1 to RACH distribution；
Fig. 4 C is the figure representing the situation sending packet in embodiment 1 to RACH distribution；
Fig. 4 D is the figure representing the situation sending packet in embodiment 1 to RACH distribution；
Fig. 5 A is the figure representing the situation sending packet in embodiment 1 to RACH distribution；
Fig. 5 B is the figure representing the situation sending packet in embodiment 1 to RACH distribution；
Fig. 5 C is the figure representing the situation sending packet in embodiment 1 to RACH distribution；
Fig. 5 D is the figure representing the situation sending packet in embodiment 1 to RACH distribution；
Fig. 5 E is the figure representing the situation sending packet in embodiment 1 to RACH distribution；
Fig. 6 is the block diagram of the radio communication terminal device representing that embodiment of the present invention 2 relates to；
Fig. 7 is the flow chart that the method for random access relating to embodiment of the present invention 2 illustrates；
Fig. 8 is the block diagram of the radio communication terminal device representing that embodiment of the present invention 3 relates to；
Fig. 9 is the flow chart that the method for random access relating to embodiment of the present invention 3 illustrates；
Figure 10 is the block diagram of the radio communication terminal device representing that embodiment of the present invention 4 relates to；
Figure 11 is the flow chart that the method for random access relating to embodiment of the present invention 4 illustrates；
Figure 12 A is to represent the priority in embodiment 4 and the radio communication terminal device of belonging same community
Quantity and to the relevant figure of the duplication quantity sending packet；And
Figure 12 B is to represent the priority in embodiment 4 and the radio communication terminal device of belonging same community
Quantity and to the relevant figure of the duplication quantity sending packet.
Detailed description of the invention
(embodiment 1)
Fig. 1 represents that, by the method for random access using embodiment of the present invention 1 to relate to, 4 that establish dedicated channel wireless
The summary of the wireless communication system that communication terminal 200-1～200-4 and base station apparatus 100 are constituted.In FIG, will
The communication zone of this wireless communication system is denoted as community A.It addition, in the community A of Fig. 1, OFDM (Orthogonal
Frequency Division Multiplexing, OFDM) signal is the signal being grouped exchange.Additionally, below
Although structure and the action of radio communication terminal device 200-1～200-4 will be illustrated, but, due to channel radio
Letter termination 200-1～200-4 all has identical structure, and plays identical function, so to its merit
The when that energy etc. being summarized, will there is the situation omitting its numbering.
Fig. 2 is the block diagram representing radio communication terminal device 200 structure.Radio communication terminal device 200 includes: send
Packet generating part 201, copied cells 202, allocation unit 210, Packet Multiplexing unit 221, wireless transmission unit 222 and
Antenna element 223.It addition, allocation unit 210 also includes: RACH sub-channel assignment unit 211-1～211-c.Wherein, " c "
It it is the random natural number of more than 2.
Transmission packet generating part 201 recovers former when radio communication terminal device 200 starts or from its idle condition
During shape, generate and comprise about in order to establish the radio communication terminal device required for the dedicated channel between base station apparatus 100
The transmission packet of the information of 200, and the transmission generated packet is input to copied cells 202.
The transmission packet inputted by transmission packet generating part 201 is replicated by copied cells 202, the c that will replicate
Individual transmission packet is separately input to RACH sub-channel assignment unit 211-1～211-c.
RACH sub-channel assignment unit 211 is with any time slot of RACH, to any subcarrier random assortment by copied cells
The transmission packet that 202 are inputted.Now, allocation unit 210 is by RACH sub-channel assignment unit 211-1～the distribution of 211-c
Result mutually compares, when sending packet and being duplicatedly distributed on identical subcarrier by identical time slot, just to appointing
The RACH sub-channel assignment unit 211 of a side of anticipating sends instruction so that it is re-start distribution.Then, allocation unit 210 is confirming
After time slot that RACH sub-channel assignment unit 211-1～211-c are distributed and subcarrier do not repeat, respectively
RACH sub-channel assignment unit 211-1～211-c are sent instruction, in order to the packet subcarrier with the time slot of distribution will be sent
It is input to Packet Multiplexing unit 221.RACH sub-channel assignment unit 211-1～211-c are according to the finger from allocation unit 210
Show, by timing and the frequency of regulation, transmission packet is input to Packet Multiplexing unit 221.
Packet Multiplexing unit 221, to the transmission packet inputted by RACH sub-channel assignment unit 211-1～211-c
Carry out multiplexing, and the transmission packet through multiplexing is input to wireless transmission unit 222.
The structure of wireless transmission unit 222 includes: dress is inserted at S/P changer, IFFT device, P/S changer, protection interval
Put, band filter, D/A changer and low-noise amplifier etc..In the transmission packet inputted from Packet Multiplexing unit 221
After generating OFDM (Orthogonal Frequency Division Multiplexing, OFDM) signal, just
The ofdm signal that will have generated, via antenna element 223, carries out wireless transmission to base station apparatus 100.
Secondly, about the action of radio communication terminal device 200, Fig. 3 is utilized to illustrate.Fig. 3 is to represent this embodiment party
The flow chart of each step of the method for random access that formula relates to.
First, in step ST310, copied cells 202 is by by sending the transmission packet that packet generating part 201 is inputted
Copy as c.
Secondly, in step ST320, RACH sub-channel assignment unit 211-1～211-c, with any time slot of RACH,
The transmission packet inputted by copied cells 202 to any subcarrier random assortment.
Then, in step ST330, RACH sub-channel assignment unit 211-1～211-c are divided by allocation unit 210
Join whether result repeats to judge.In step ST330, when allocation unit 210 judges that the distribution of RACH subchannel is single
When the allocation result of 211 has generation to repeat, for there is appointing of the RACH sub-channel assignment unit 211 repeated in allocation unit 210
He Yifang so that it is re-start distribution in step ST320.On the other hand, in step ST330, when allocation unit 210 is judged
When the allocation result of RACH sub-channel assignment unit 211 does not occur to repeat, then perform step ST340.
Then, in step ST340, wireless transmission unit 222 is from the transmission packet inputted by Packet Multiplexing unit 221
Generate ofdm signal, and by RACH, the ofdm signal generated is carried out nothing via antenna element 223 to base station apparatus 100
Line sends.
Fig. 4 A～Fig. 4 D and Fig. 5 A～Fig. 5 E is to represent according to method of random access of the present embodiment, passes through
Any time slot of RACH, sends the particular state of packet to the distribution of any subcarrier.It addition, in the present embodiment, RACH
Channel-assignment unit 211 is by 5 subcarriers (SC) and 5 time slots (TS), and a unit as RACH processes, single at this
In Wei, carry out random assortment to sending packet.
Fig. 4 A is to represent in radio communication terminal device 200-1, will send the state that packet is allocated to RACH.
Similarly, Fig. 4 B is to represent the distribution state about radio communication terminal device 200-2；Fig. 4 C is to represent relevant radio communication
The distribution state of termination 200-3；Fig. 4 D is to represent the distribution state about radio communication terminal device 200-4.It addition,
Fig. 4 A and Fig. 4 D is to represent, not only to any one time slot of RACH, and, also to any one subcarrier, random assortment
Send the state of packet；Fig. 4 B is to represent the whole time slots by RACH, and to any one subcarrier, random assortment sends packet
State；And, Fig. 4 C is any one time slot representing the SC3 to RACH, and random assortment sends the state of packet.
That Fig. 5 A～Fig. 5 E represents is radio communication terminal device 200-1～200-4, represented by Fig. 4 A～Fig. 4 D
In distribution state, after have sent transmission packet successively, about the wireless communication terminal dress of the SC1～5 of each self-timing of TS1～5
Put the transmission situation of 200-1～200-4.Fig. 5 A is the transmission situation representing TS1；Fig. 5 B is the transmission situation representing TS2；Figure
5C is the transmission situation representing TS3；Fig. 5 D is the transmission situation representing TS4；And, Fig. 5 E is the transmission situation representing TS5.Separately
Outward, in Fig. 5 A～Fig. 5 E, to the transmission packet clashed, whole label symbol "×", to radio communication terminal device
Each radio communication terminal device of 200-1～200-4, the transmission received by base station apparatus 100 for the first time packet label symbol "
○」。
As shown in Fig. 5 A～Fig. 5 E, fill at timing, the wireless communication terminal of TS1 about radio communication terminal device 200-1
Put 200-2 at the timing of TS3, radio communication terminal device 200-3 at the timing of TS5, radio communication terminal device 200-4
In the timing of TS4, the dedicated channel between base station apparatus 100 each can be established.
As it has been described above, according to present embodiment, radio communication terminal device 200 divides to RACH random assortment RACH subchannel
Join multiple transmission packets in unit 211-1～211-c, that replicate, do not wait for initial send packet from base station
The response of device 100, is transmitted sending packet with subcarrier by the time slot of distribution, it becomes possible in a shorter period,
Establish the dedicated channel between base station apparatus 100.
Further, since according to the radio communication terminal device 200-2 in present embodiment, can only to the time slot of RACH, with
Machine distribution is multiple sends packet；Or, according to radio communication terminal device 200-3, the subcarrier of RACH can only be divided at random
Join multiple transmission to be grouped, therefore, as long as the time slot of RACH is compared with the random assortment situation of subcarrier both sides, it becomes possible to
Alleviate the load carrying out signal processing in distribution sends the necessary RACH sub-channel assignment unit 211 of packet.
It addition, according to radio communication terminal device 200-1 or 200-4 of the present embodiment, RACH subchannel
Allocation unit 211 is to any one time slot of RACH and any one subcarrier, and random assortment is multiple sends packet, therefore,
Even there being multiple affiliated wireless communication termination 200 in same community, it is also possible to the transmission reduced in RACH divides
The conflict probability of group.
It addition, about method of random access of the present embodiment and radio communication terminal device 200, it is also possible to as
Use as described in lower or change.
In the present embodiment, although just about multiple radio communication terminal devices 200 to the time slot of RACH and subcarrier
Random assortment sends the situation of packet and is illustrated, but the present invention is not only defined in this situation, such as, multiple wireless
What communication terminal 200 carried out wireless transmission is not ofdm signal, but the packet signal of single carrier wave, it is also possible to RACH
Any time slot, this packet signal of random assortment.
It addition, in the present embodiment, although random with subcarrier to the time slot of RACH to radio communication terminal device 200
Distribution sends the situation being grouped and being transmitted and is described, but the present invention is not only defined in this situation, for example, it is possible to
It is that radio communication terminal device 200 randomly chooses time slot and the subcarrier spreading code replacement RACH, utilizes the spread spectrum code selected,
Code division is carried out to sending packet.Furthermore, it is also possible to the RACH using time slot, subcarrier and spread spectrum code as setting key element
Subchannel random assortment sends packet.Even if if so, the number of the radio communication terminal device 200 of belonging same community
Amount increases, it is also possible to make the conflict probability sending packet in RACH decline further.
(embodiment 2)
Fig. 6 is the block diagram of the radio communication terminal device 600 representing that embodiment of the present invention 2 relates to.Channel radio
Letter termination 600, in the content of the radio communication terminal device 200 having been described above in embodiment 1, has been also equipped with preferential
Level determining means 601 and duplication quantity determining means 602.Therefore, radio communication terminal device 600 is owing to possessing multiple
Wave the construction unit of construction unit identical function with radio communication terminal device 200, therefore, relevant such construction unit,
Mark the label identical with the construction unit of radio communication terminal device 200, and the description thereof will be omitted.
After priority determining means 601 starts to communicate with base station apparatus 100 according to radio communication terminal device 600, institute is pre-
Fixed type service, determines priority.Such as, due in session services or video streaming services, when being allowed for postponing
Between shorter the delay of the QoS (require stricter), therefore, in the radio communication terminal device 600 subscribing this kind of service, preferentially
Level determining means 601 is necessary to determine higher priority.Then, priority determining means 601 by relevant determined preferentially
The information of level, is input to replicate quantity determining means 602.
Replicate the precedence information that will be inputted by priority determining means 601 of quantity determining means 602, and prepared in advance
Map table contrast, determine corresponding to the duplication quantity of this priority, and by the information about determined duplication quantity,
It is input to copied cells 202.
Secondly, about the action of radio communication terminal device 600, Fig. 7 is utilized to illustrate.Fig. 7 is to present embodiment
The flow chart that each step of the method for random access related to illustrates.
First, in step ST710, priority determining means 601 is according to by not having the institute such as control unit that indicates in figure
The QoS of input postpones to require information, determines the priority of radio communication terminal device 600.
Secondly, in step ST720, replicate the priority that quantity determining means 602 determines and determined in step ST710
The corresponding duplication quantity sending packet, and the information of this duplication quantity is input to copied cells 202.
Subsequently, by step ST310 performed successively in embodiment 1～340.
Here, following " table 1 " middle expression is by the example replicating the map table that quantity determining means 602 is preserved
Son.This map table be according to c=α × p (1) c be replicate quantity, α be fixed number, p be priority, and be to work as α
The form being compiled into when=1.
(table 1)
As it has been described above, according to method of random access of the present embodiment, what sending in copied cells 202 was grouped answers
Quantity processed, is to determine, therefore, in belonging same community according to predetermined type service after establishing in dedicated channel
Multiple radio communication terminal devices 600 in, it is the strictest that QoS postpones request, more can establish and base station apparatus in the short-term
Dedicated channel between 100.Its result, according to method of random access of the present embodiment, whole belonging same
In multiple radio communication terminal devices 600 of community, can become to be difficult to occur communication quality reduce or can not communicate
Problem.
(embodiment 3)
Fig. 8 is the block diagram of the radio communication terminal device 800 representing that embodiment of the present invention 3 relates to.Channel radio
Letter termination 800, in embodiment 1 it is stated that radio communication terminal device 200 content on, be also equipped with replicate quantity
Determining means 802.Therefore, radio communication terminal device 800 is owing to possessing the knot of multiple performance and radio communication terminal device 200
The construction unit of structure unit identical function, therefore about this kind of construction unit, mark and the knot of radio communication terminal device 200
The label that structure unit is identical, and the description thereof will be omitted.
Replicate quantity determining means 802, the information of sending times that will be inputted by the control unit etc. not have in figure to indicate,
Contrast with the map table prepared in advance, determine the duplication quantity corresponding with this sending times, and by relevant it is determined that
The information of duplication quantity, be input to copied cells 202.It addition, " sending times " in the present embodiment, each time will
By metering when the TS1～5 represented by any one width figure in Fig. 4 A～Fig. 4 D is all transmitted.
Secondly, about the action of radio communication terminal device 800, Fig. 9 is utilized to illustrate.Fig. 9 is to present embodiment
The flow chart that each step of the method for random access related to illustrates.
First, in step ST910, by by replicating the sending times that quantity determining means 802 is inputted, accurate with institute in advance
Standby map table contrasts, and determines to send the duplication quantity of packet, and by the information of determined duplication quantity, is input to multiple
Unit 202 processed.
Subsequently, by step ST310 performed successively in embodiment 1～340.
It is here, following " table 2 " that represent is by replicating the example of map table that quantity determining means 802 is preserved.
This map table be according to c=F+ β (2) c be replicate quantity, F be the number of times retransmitted, β be fixed number, and be to work as β
The map table being compiled into when=1.
(table 2)
As it has been described above, according to method of random access of the present embodiment, by RACH, by radio communication terminal device
The quantity of the 800 transmission packets sent to base station apparatus 100 is along with the increased frequency retransmitted, therefore, belonging same
In multiple radio communication terminal devices 800 of community, urgency is the highest, the easiest in a shorter period, establish and base station
Dedicated channel between device 100.Its result, according to method of random access of the present embodiment, whole belonging same
In multiple radio communication terminal devices 800 of one community, can become to be difficult to produce communication quality and decline or can not lead to
The problem of letter etc..
(embodiment 4)
Figure 10 is the block diagram of the radio communication terminal device 1000 representing that embodiment of the present invention 4 relates to.Wireless
Communication terminal 1000, in embodiment 1 it is stated that radio communication terminal device 200 content on, be also equipped with wireless
Receive unit 1001, control information extraction unit 1002 and replicate quantity determining means 1003.Therefore, wireless communication terminal
Device 1000, because possessing the construction unit of multiple performance and the construction unit identical function of radio communication terminal device 200, institute
About this kind of construction unit, to mark the reference number identical with the construction unit of radio communication terminal device 200, and to omit
Its explanation.
Radio receiving unit 1001 includes: dress is deleted at band filter, A/D changer, low-noise amplifier, protection interval
Put, S/P changer, FFT device and P/S changer etc..Obtained by antenna element 223 and send out termly from base station apparatus 100
The ofdm signal of the quantity of the radio communication terminal device 1000 of the belonging community A of send here, notice.And it is real to this ofdm signal
After the reception signal processing that professional etiquette is fixed, it is entered into control information extraction unit 1002.
Control information extraction unit 1002, from the reception signal inputted by radio receiving unit 1001, extract relevant
The information (hereinafter referred to as " control information ") of the quantity of the radio communication terminal device 1000 of belonging community A, and by extraction
Control information is input to replicate quantity determining means 1003.
Replicate quantity determining means 1003, by by controlling the control information that information extraction unit 1002 is inputted, with in advance
The map table prepared contrasts, and determines to control the duplication quantity that information is corresponding with this, and by the duplication number about determining
The information of amount, is input to copied cells 202.
Secondly, about the action of radio communication terminal device 1000, Figure 11 is utilized to illustrate.Figure 11 is that this enforcement is described
The flow chart of each step of the method for random access that mode relates to.
First, in step ST1110, control information extraction unit 1002 from being inputted by radio receiving unit 1001
Receive control information of extracting in signal.
Secondly, in step ST1120, replicate quantity determining means 1003 and grasp belonging community A's according to the information of control
The quantity of radio communication terminal device 1000, by referring to the map table prepared in advance, determines corresponding with this quantity
Replicate quantity.
Subsequently, will perform successively in embodiment 1 it is stated that step ST310～340.
It is here, following " table 3 " that represent is to replicate the example of map table that quantity determining means 1003 preserves.At table
In 3, RACH sub-channel assignment unit 211 is by be made up of 100 subcarriers of 10 time slots and each time slot, total 1000
RACH subchannel, a unit as RACH processes, and be randomly assigned in this unit be to the maximum 100 send out
Send packet.And each in assuming radio communication terminal device 1000 belonging priority 1 equably～5 grades.
(table 3)
It addition, Figure 12 A illustrates about radio communication priority 5 in the present embodiment, belonging community A eventually
The quantity of end device 1000 is relevant to replicate between quantity.Similarly, what Figure 12 B illustrated about in the present embodiment is excellent
The quantity of first level 3, belonging community A radio communication terminal device 1000 and replicate between quantity relevant.As Figure 12 A with
And shown in Figure 12 B, be configured in the present embodiment, along with the radio communication terminal device of belonging same community
The increase of the quantity of 1000, reduces the duplication quantity sending packet in copied cells 202.
Therefore, according to method of random access of the present embodiment, if the radio communication of belonging same community
The increasing number of termination 1000, owing to reducing the quantity sending packet that each radio communication terminal device 1000 sends,
Therefore, it becomes possible to reduce the conflict probability sending packet in the RACH of same community.Its result, according to present embodiment
The method of random access related to, in multiple radio communication terminal devices 1000 of whole belonging same community, can
Become to be difficult to produce communication quality to decline or can not communicate etc. problem.
It addition, in the above-described embodiment, although in Packet Multiplexing unit 221, to the transmission Packet Multiplexing that will replicate
Situation to subcarrier or time slot is illustrated, but other resource, such as, when radio communication terminal device 200 has
During standby multiple transmission antenna, can be to the spread spectrum in the space resources of transmission antenna or directivity pattern etc. and cdma system
Code, carries out multiplexing and sends.
It addition, each functional device in the explanation of the respective embodiments described above generally can be embodied as LSI, it is a kind of integrated
Circuit.The most each piece of these blocks are individually integrated into a chip, or can be part or all of piece and be integrated into one
Chip.
Although referred to herein as LSI, but according to degree of integration, integrated chip can be referred to as IC, system LSI, super LSI
(Super LSI；Super large-scale integration) or especially big LSI (Ultra LSI；ULSI).
Moreover, it is achieved that the method for integrated circuit is not limited only to LSI, it is possible to use special circuit or general processor realize
It.Available FPGA (Field Programmable Gate Array, field programmable gate array) after LSI manufactures, or
Connection and the reconfigurable processor of setting of circuit unit within restructural LSI can be used.
Furthermore, along with the technological progress of quasiconductor and/or the appearance of other technologies derived from therewith, if it is possible to occur replacing
For the new technique of LSI integrated circuit, certainly this new technique just can be utilized to carry out the integrated of functional device.And also exist applicable raw
The probability of thing technology etc..
This specification is based on Japanese patent application filed in 9 days March in 2004 the 2004-65625th.Its content is whole
It is incorporated herein by reference.
Industrial applicibility
The method of random access that the present invention relates to and radio communication terminal device, have can in a shorter period,
The effect of the dedicated channel between establishment and base station apparatus, the radio communication system to the service providing strict QoS to postpone request
System etc. is useful.
Claims (3)
1. a sending method, comprises the following steps:
Transmission packet is copied into multiple transmission be grouped；
The transmission of the plurality of duplication is distributed to the time slot of RACH that randomly chooses in resource candidate and
Subcarrier；
Utilize selected described time slot and the subcarrier of described RACH, do not wait from base station apparatus for multiple
The response of initial one sending packet of system just sends the transmission packet of the plurality of duplication.
2. a dispensing device, including:
Copied cells, is copied into transmission packet multiple transmission and is grouped；
Allocation unit, the RACH distributing to the transmission of the plurality of duplication to randomly choose in resource candidate
Time slot and subcarrier；And
Transmitting element, utilizes selected described time slot and the subcarrier of described RACH, does not wait and fill from base station
That puts sends, for duplication, the plurality of transmission packet that an initial response just transmission of packet replicates.
3. an integrated circuit, including:
Replicate control unit, be controlled transmission packet is copied into multiple process sending packet；
Assignment control, to the plurality of duplication sends the random access distributing to randomly choose in resource candidate
The time slot of channel and the process of subcarrier are controlled；And
Send control unit, control to utilize selected described time slot and the subcarrier of described RACH, do not wait
From the plurality of transmission packet of an initial response just transmission duplication duplication being sent to packet of base station apparatus
Process.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004065625 | 2004-03-09 | ||
| JP065625/04 | 2004-03-09 | ||
| CNB2005800068446A CN100515117C (en) | 2004-03-09 | 2005-02-28 | Random access method and radio communication terminal device |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005800068446A Division CN100515117C (en) | 2004-03-09 | 2005-02-28 | Random access method and radio communication terminal device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101562844A CN101562844A (en) | 2009-10-21 |
| CN101562844B true CN101562844B (en) | 2016-09-28 |
Family
ID=34918262
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005800068446A Active CN100515117C (en) | 2004-03-09 | 2005-02-28 | Random access method and radio communication terminal device |
| CN200910143311.2A Active CN101562844B (en) | 2004-03-09 | 2005-02-28 | Sending method, dispensing device and integrated circuit |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005800068446A Active CN100515117C (en) | 2004-03-09 | 2005-02-28 | Random access method and radio communication terminal device |
Country Status (10)
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| US (9) | US7873000B2 (en) |
| EP (3) | EP3442302B1 (en) |
| JP (4) | JP4734233B2 (en) |
| KR (3) | KR101103230B1 (en) |
| CN (2) | CN100515117C (en) |
| BR (1) | BRPI0508580B1 (en) |
| ES (2) | ES2708305T3 (en) |
| PL (2) | PL1715709T3 (en) |
| RU (2) | RU2389158C2 (en) |
| WO (1) | WO2005086520A1 (en) |
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